Occupational exposure to ethylene oxide: effects and control

Area of Science:

• Occupational Health
• Environmental Science
• Sterilization Technology

Background:

• Ethylene oxide (EO) is a primary sterilant for heat-sensitive medical devices.
• Healthcare workers face annual exposure risks to residual EO.
• Concerns regarding EO's mutagenic potential drive stricter exposure limits.

Purpose of the Study:

• To review the toxic effects of ethylene oxide exposure.
• To present a gas sterilization system that reduces workplace exposure.
• To ensure sterility of medical products while minimizing EO exposure.

Main Methods:

• Review of ethylene oxide toxicity.
• Implementation and assessment of a novel gas sterilization system.
• Monitoring of exposure concentrations against established limits.

Main Results:

• The described system achieved EO exposure levels significantly below the ACGIH-proposed threshold limit value.
• Sterilization efficacy for reusable medical products was maintained.
• Demonstrated a viable method for reducing occupational exposure to ethylene oxide.

Conclusions:

• The implemented gas sterilization system effectively controls ethylene oxide exposure.
• This approach balances the need for sterilization with healthcare worker safety.
• Environmental health professionals should be aware of this hazard and mitigation strategies.